Root canal cost in Ontario depends mainly on which tooth is treated, how many canals it has, how complex or infected it is, whether it is a first treatment or a retreatment, and whether the tooth then needs a crown. Each dental office sets its own fees. Private plans usually pay part, and the CDCP covers standard root canals for eligible patients.
A root canal saves a tooth whose inner pulp is inflamed or infected. The fee for the root canal itself is only part of the picture: exams, X-rays, the final filling or crown and sometimes a specialist referral can all add to the total. This guide from Sky Dental Centre explains how root canal fees are set in Ontario, the main root canal price factors, the full cost of saving a tooth, what insurance, the CDCP and NIHB cover, how root canals compare with extraction, what happens at the appointment, and how treatment works at our office in Thunder Bay.
What Is Root Canal Therapy?
Root canal therapy removes infected or inflamed pulp, the soft tissue of nerves, blood vessels and connective tissue inside a tooth. The dentist cleans and shapes the canals, then seals them and restores the tooth. Pulp damage usually follows deep decay, a crack or trauma. Without treatment, infection can spread, cause an abscess and lead to tooth loss.
If you are unsure whether you need treatment, our article on root canal signs and symptoms explains the common signs.
How Are Root Canal Fees Set in Ontario?
Root canal fees in Ontario are set by each dental office, usually per tooth and according to the number of canals. Many general dentists and insurers use the Ontario Dental Association’s Suggested Fee Guide as a reference, but dentists are not required to follow it. Specialists, such as endodontists, have additional factors that influence their fees.
The Ontario Dental Association explains that location, overhead and the time a procedure takes all influence fees. Because insurers often reimburse according to the fee guide’s procedure codes, ask for an estimate that lists each code, including the exam, X-rays, root canal and final restoration.
Root Canal Price Factors: What Changes the Cost?
The main root canal price factors are tooth type, canal number and shape, the severity of infection, whether the tooth has been treated before, the imaging needed and who performs the treatment. Each factor changes how long the procedure takes and how many visits it needs.
| Price Factor | Lower Cost | Higher Cost |
| Tooth type | Front tooth, often one canal | Molar, usually three or more canals |
| Canal anatomy | Straight, accessible canals | Curved, narrow or calcified canals |
| Infection | Inflamed pulp, no abscess | Abscess needing extra visits or medication |
| Treatment history | First root canal | Retreatment of an old root canal |
| Imaging | Standard X-rays | Additional or 3D imaging for complex anatomy |
| Provider | General dentist for routine cases | Endodontist for complex cases or surgery |
Front teeth, premolars and molars
Front teeth are usually simplest. Premolars often have one or two canals. Molars, the large back teeth, usually have three or four canals and can be harder to reach, so they take longer and cost more.
Retreatment and referral
If a previously treated tooth becomes infected again, retreatment removes the old filling material and cleans the canals again. Complex retreatments and root-end surgery are often referred to an endodontist, a certified specialist whose fees reflect that complexity.
What Does Saving a Tooth Cost in Total?
The total cost of saving a tooth with a root canal usually includes diagnosis, the root canal itself and a permanent restoration. Back teeth are usually crowned afterward because they take heavy chewing forces, and the crown can cost as much as or more than the root canal. Including the crown gives a realistic budget.
| Stage | What It Involves |
| Diagnosis | Exam, tests on the tooth and X-rays |
| Root canal | Removing the pulp, cleaning, shaping and sealing the canals |
| Temporary filling | Protects the tooth between visits |
| Core build-up | Rebuilds lost structure before a crown, if needed |
| Crown or permanent filling | Protects the tooth long term |
| Follow-up | Checks healing, sometimes with an X-ray |
Our guide to dental crown cost in Thunder Bay covers the crown part of the budget, and our article How Long Do Dental Crowns Last? explains crown lifespan.
Does Insurance, the CDCP or NIHB Cover Root Canals?
Most private dental plans in Ontario cover part of root canal treatment, often as a basic or major service, subject to deductibles and annual maximums. The Canadian Dental Care Plan covers standard root canals on most teeth without preauthorization for eligible patients. Many First Nations and Inuit patients have dental coverage through the federal Non-Insured Health Benefits program.
Key CDCP rules from the CDCP Dental Benefits Guide:
| Service | CDCP Rule |
| Standard root canal on front teeth, premolars, first and second molars | No preauthorization needed |
| Root canal on third molars (wisdom teeth) | Preauthorization needed |
| Retreatment, apicoectomy, retrofilling | Preauthorization needed; limited to 1 of each per tooth per lifetime |
| Crown after root canal (age 18 and older) | Preauthorization needed; strict criteria apply |
The CDCP also expects the tooth to have no active gum disease, adequate bone support and enough healthy structure to restore. Co-payments may apply depending on family income. The NIHB Dental Benefits Guide sets out that program’s own rules, so check coverage before planned treatment. For private plans, ask your insurer what percentage applies, how much of your annual maximum remains and whether a predetermination is needed.
Root Canal or Extraction: Which Costs Less Over Time?
An extraction usually costs less on the day than a root canal. But replacing the missing tooth with an implant or bridge usually costs more than a root canal and crown, and leaving a gap can let neighbouring teeth drift and change your bite. For a tooth that can be restored, saving it is often the more economical long-term choice.
| Option | Upfront Cost | Later Costs | Considerations |
| Root canal and crown | Moderate | Regular check-ups | Keeps your natural tooth |
| Extraction only | Lowest | Possible bite changes | Gap may affect chewing |
| Extraction and implant | Highest | Implant maintenance | Not covered by the CDCP |
| Extraction and bridge | High | Bridge replacement over time | Neighbouring teeth crowned; not covered by the CDCP |
Not every tooth can be saved. Severe fractures, very little remaining structure or poor bone support may make extraction the better option. See our guides to tooth extraction cost and dental implant cost to compare.
What to Expect During a Root Canal Appointment
A root canal usually takes one or two appointments. After numbing the tooth, the dentist isolates it, removes the pulp, cleans and shapes each canal, then seals the canals and places a filling. Most people feel pressure rather than pain, and tenderness usually settles within a few days.
- Examination: the dentist assesses the tooth and takes X-rays to see the extent of damage.
- Numbing: local anesthetic numbs the tooth and surrounding area.
- Cleaning and shaping: the inflamed or infected pulp is removed and the canals are cleaned.
- Sealing: the canals are filled and sealed to help prevent reinfection.
- Restoration: a temporary or permanent filling is placed, and a crown is planned if needed.
If a tooth is badly infected or swollen, an emergency visit may be needed first to relieve pain and start treatment. After the root canal, avoid chewing hard foods on the tooth until the final restoration is placed.
How Can You Manage Root Canal Costs?
You can manage root canal costs by treating symptoms early, checking coverage before planned treatment, asking for an itemized estimate that includes the crown, and planning the crown within your benefit year where clinically safe. Early treatment is usually simpler, quicker and less expensive than treating a severe infection.
- Do not wait for swelling. A tooth treated early is often less complex.
- Ask for a predetermination for planned treatment and the crown.
- Check CDCP or NIHB coverage if you have it, including preauthorization rules.
- Keep your crown appointment. Keep the temporary filling intact and return for the final restoration on time, because a delayed crown can lead to fracture and extra cost.
Root Canal Therapy at Sky Dental Centre in Thunder Bay
At Sky Dental Centre at 2817 Arthur St E, Dr. Ahmed Ameen Al-Obaidi (BDS, DDS) provides root canal therapy as part of his general dental practice. We examine the tooth, explain whether it can be saved, outline what it will need afterward and provide a complete written cost breakdown before treatment begins. We can also send a predetermination to your insurer, and we accept the Canadian Dental Care Plan. Cases that need specialist endodontic care are identified and discussed with you.
Many root canals are completed in one or two visits under local anesthetic, and the crown is placed at a separate planned appointment. Learn more on our Root Canal Therapy in Thunder Bay page. For sudden pain or swelling, see our Emergency Dentist in Thunder Bay page.
Frequently Asked Questions
Why does a root canal on a molar cost more than on a front tooth?
Molars usually have three or four canals, often curved or narrow, while front teeth typically have one. More canals mean more time to find, clean, shape and seal, and sometimes extra imaging. Molars also usually need a crown afterward because they take heavy chewing forces. Together, these make the total cost of saving a molar higher than saving a front tooth.
Does the CDCP cover root canals in Thunder Bay?
Yes, for eligible patients. The Canadian Dental Care Plan covers standard root canal treatment on front teeth, premolars and first and second molars without preauthorization. Root canals on wisdom teeth, retreatments and root-end surgery need preauthorization. A co-payment may apply depending on family income. Sky Dental Centre accepts the CDCP; ask us to confirm what applies to your tooth before treatment begins.
Do I really need a crown after a root canal?
Often, especially for back teeth. A root canal removes the inside of the tooth, and molars and premolars take strong chewing forces, so a crown helps prevent fractures. Front teeth with plenty of remaining structure may only need a filling. Your dentist will recommend the restoration that suits the tooth. Including the crown in your budget gives a realistic picture of the total cost of saving the tooth.
Is it cheaper to pull a tooth than have a root canal?
On the day, an extraction usually costs less. However, replacing the tooth later with an implant or bridge usually costs more than a root canal and crown, and the CDCP does not cover either replacement. Leaving a gap can also let teeth shift and affect your bite. Compare the full long-term cost of each option with your dentist before deciding, especially for a back tooth.
Can I wait to have a root canal to save money?
Waiting is risky. An infected tooth usually gets worse, which can mean more pain, a spreading infection, an emergency visit, a more complex root canal or losing the tooth altogether, all of which cost more. If cost is the concern, ask about a predetermination with your insurer, checking CDCP or NIHB coverage, and spreading treatment stages, rather than delaying care.
Book a Root Canal Assessment in Thunder Bay
Root canal cost in Ontario depends on the tooth, its complexity and what it needs afterward, so a written estimate for your tooth is the only reliable figure. Insurance, the CDCP or NIHB may cover part of it, and saving a restorable tooth is usually less expensive than replacing it.
If you have tooth pain or have been told you may need a root canal, book an appointment online. We will examine the tooth, explain your options and give you a written cost breakdown before treatment.
This article is general information, not dental, insurance or tax advice. Fees and coverage vary, so check your own plan and speak with a dentist about your tooth.
